Jay124
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Fliters

Sun Apr 22, 2018 10:36 pm

Wondering what kind of lens filters are the best for reducing heat haze?
Jason
 
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Kaphias
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Re: Fliters

Sun Apr 22, 2018 11:15 pm

None - shoot in colder weather (or more accurately, less temperature differential between the surface of the tarmac and the air).
 
Jay124
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Re: Fliters

Mon Apr 23, 2018 1:20 am

That's what I was afraid of. It was 68 today but real bright sun all day.
 
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cpd
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Re: Fliters

Mon Apr 23, 2018 8:12 pm

Jay124 wrote:
Wondering what kind of lens filters are the best for reducing heat haze?
Jason


I've had some success using an ND filter (darkening) and using a slower shutter speed.

But if conditions are very hot/hazy then nothing will help.
 
vikkyvik
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Re: Fliters

Mon Apr 23, 2018 10:23 pm

cpd wrote:
I've had some success using an ND filter (darkening) and using a slower shutter speed.


I imagine all that would do is "average out" the heat haze.

So on a heat-hazed straight edge, instead of lots of small sharp heat-haze wiggles, you'll get a straighter, but much softer, line.

Is that correct? Never really tried it myself.
I'm watching Jeopardy. The category is worst Madonna songs. "This one from 1987 is terrible".
 
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cpd
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Re: Fliters

Tue Apr 24, 2018 2:43 am

vikkyvik wrote:
cpd wrote:
I've had some success using an ND filter (darkening) and using a slower shutter speed.


I imagine all that would do is "average out" the heat haze.

So on a heat-hazed straight edge, instead of lots of small sharp heat-haze wiggles, you'll get a straighter, but much softer, line.

Is that correct? Never really tried it myself.


It sort of does. It's not perfect, and you do have to use a slower shutter speed, but you might get a photo that otherwise would be ruined by heat haze. If it is very hazy, then it's useless. But lighter heat haze can be offset by that trick.


The idea of the ND filter is to darken things, slow down the shutter speed and still maintain a reasonable aperture (ie, not F/16). If your shutter speed is too high, the heat haze looks very obvious.
 
Jay124
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Re: Fliters

Wed Apr 25, 2018 12:38 am

Thanks, the other day is was clear but really sunny. I think it was coming off the runway.
But I am going to try shooting slower shutter to see
 
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cpd
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Re: Fliters

Wed Apr 25, 2018 2:28 am

Jay124 wrote:
Thanks, the other day is was clear but really sunny. I think it was coming off the runway.
But I am going to try shooting slower shutter to see


Unless you are really close to the runway or the plane (or the plane is going really fast) then you don't need to use the shutter speeds I typically see being used, 1/1250sec or 1/1000sec, those are way too high for broad daylight. 1/320sec or even 1/125sec is enough using todays stabilised lenses and correct shooting technique.

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